Quis custodiet ipsos custodes?

The ''Quis custodiet ipsos custodes? ''emergency protocol was created to prevent that the Powerful Ones turn evil.

After several years of research, a weakness had been discovered in the biology of the Powerful Ones: if they receive a certain quantity of a special liquid, they can die after a period of coma.

This is one of the most kept secret of the government and the liquid is well guarded in a hidden vault. Nowadays, only one villain had been killed using this protocol: Vasili Ivanovitch.